/*
 * Copyright 2013-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.cloud.sleuth.annotation;

/**
 * Resolves the tag value for the given parameter.
 *
 * @author Christian Schwerdtfeger
 * @since 1.2.0
 */
public interface TagValueResolver {

	/**
	 * Returns the tag value for the given parameter.
	 * @param parameter - parameter annotated with {@link SpanTag}
	 * @return the value of the tag
	 */
	String resolve(Object parameter);

}
